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Radeon HD 4850 512MB vs Radeon R7 M260X

Intro

The Radeon HD 4850 512MB makes use of a 55 nm design. AMD has clocked the core speed at 625 MHz. The GDDR3 RAM runs at a frequency of 993 MHz on this card. It features 800(160x5) SPUs as well as 40 Texture Address Units and 16 ROPs.

Compare those specs to the Radeon R7 M260X, which uses a 28 nm design. AMD has clocked the core speed at 825 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this particular card. It features 384 SPUs as well as 24 Texture Address Units and 8 Rasterization Operator Units.

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Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the Radeon R7 M260X should in theory be a bit superior to the Radeon HD 4850 512MB overall. (explain)

Radeon R7 M260X 64000 MB/sec
Radeon HD 4850 512MB 63552 MB/sec
Difference: 448 (1%)

Texel Rate

The Radeon HD 4850 512MB will be much (about 26%) faster with regards to AF than the Radeon R7 M260X. (explain)

Radeon HD 4850 512MB 25000 Mtexels/sec
Radeon R7 M260X 19800 Mtexels/sec
Difference: 5200 (26%)

Pixel Rate

The Radeon HD 4850 512MB will be quite a bit (more or less 52%) more effective at AA than the Radeon R7 M260X, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

Radeon HD 4850 512MB 10000 Mpixels/sec
Radeon R7 M260X 6600 Mpixels/sec
Difference: 3400 (52%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

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Radeon HD 4850 512MB

Amazon.com

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Radeon R7 M260X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model Radeon HD 4850 512MB Radeon R7 M260X
Manufacturer AMD AMD
Year Jun 25, 2008 June 2014
Code Name RV770 PRO Opal
Memory 512 MB 2048 MB
Core Speed 625 MHz 825 MHz
Memory Speed 1986 MHz 4000 MHz
Power (Max TDP) 110 watts (Unknown) watts
Bandwidth 63552 MB/sec 64000 MB/sec
Texel Rate 25000 Mtexels/sec 19800 Mtexels/sec
Pixel Rate 10000 Mpixels/sec 6600 Mpixels/sec
Unified Shaders 800(160x5) 384
Texture Mapping Units 40 24
Render Output Units 16 8
Bus Type GDDR3 GDDR5
Bus Width 256-bit 128-bit
Fab Process 55 nm 28 nm
Transistors 956 million (Unknown) million
Bus PCIe 2.0 x16 PCIe 3.0 x8
DirectX Version DirectX 10.1 DirectX 11.2
OpenGL Version OpenGL 3.0 OpenGL 4.3

Memory Bandwidth: Memory bandwidth is the max amount of data (measured in megabytes per second) that can be transported over the external memory interface within a second. The number is calculated by multiplying the interface width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

Hide Prices

Radeon HD 4850 512MB

Amazon.com

Check prices at:

Radeon R7 M260X

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

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